Introduction
The Malware Alert Response with Elastic Security playbook automates malware detection, analysis, and mitigation. By integrating with Hybrid Analysis and Elastic Security, it ensures rapid and effective response actions, safeguarding endpoints and reducing organizational risk.
Challenges Faced
Slow Incident Response: Manual workflows hinder timely action against malware threats.
Inconsistent Threat Analysis: Lack of integration across tools delays malware reputation validation.
Endpoint Vulnerabilities: Uncontained endpoints can amplify malware damage.
How SIRP Solves This
This playbook streamlines the malware response process through automation and integration with Elastic Security and Hybrid Analysis.
Malware Detection and Analysis
The reported hash is sent to Hybrid Analysis to generate a detailed reputation report.
Severity Adjustment
Based on the malware's reputation, the playbook automatically updates the alert severity to either High or Low.
Threat Containment and Mitigation
If identified as malicious, the file hash is added to the blocklist in Elastic Security, preventing further execution.
The compromised endpoint is isolated via Elastic Security, ensuring no lateral movement.
SOC Team Notification and Task Assignment
An email notification is sent to the analyst, and tasks are assigned to investigate the incident and coordinate remediation actions.
The alert disposition is updated to Investigation to reflect ongoing action.
Playbook Prerequisites
Elastic Security Configuration: Ensure the SIEM platform is set up to detect and ingest malware alerts.
Hybrid Analysis Integration: Hybrid Analysis must be configured to provide file hash reputation.
SIRP Configuration: For orchestrating workflows and managing task assignments.
Playbook Integrations
Hybrid Analysis: Fetches and evaluates malware reputation.
Elastic Security: Blocks malicious hashes and isolates affected endpoints.
SIRP: Manages alert updates, notifications, and task assignments.
Playbook Inputs
Hash: The file hash to be analyzed and blocked.
Source IP: The origin of the alert or malware activity.
Playbook Outputs
File Hash Report from Hybrid Analysis: Provides detailed malware reputation insights.
File Hash Added to Blocklist on Elastic: Blocks the malicious file hash across endpoints.
Endpoint Isolation Using Elastic Security: Contains the affected asset to prevent malware spread.
Severity Adjustment: Automatically updates severity based on the reputation analysis.
Email Notification to Analyst: Alerts SOC teams for further investigation.
Task Assignment to Analyst: Assigns investigation and remediation tasks.
Disposition Change to Investigation: Updates alert status for tracking ongoing response.
The SIRP Playbook
Key Benefits
Accelerated Response: Automates detection, analysis, and containment for faster resolution.
Endpoint Security: Isolates compromised assets to limit malware impact.
Integrated Threat Analysis: Combines insights from Hybrid Analysis and Elastic Security.
Streamlined Workflows: Assigns tasks and communicates actions efficiently via SIRP.
FAQs
Can this playbook integrate with other tools besides Elastic Security?
Yes, the playbook can be customized to support other EDR or SIEM tools with similar functionalities.
What happens if a hash is not identified as malicious?
The alert severity is downgraded, and the disposition remains in "Investigation" for further manual analysis.
Does this playbook support multi-tenancy environments?
Yes, it can be configured to work with multi-tenant setups, ensuring segregated response workflows.